I don't understand the Windows 7 taskbar behaviour. For some programs it will not group the running instances, or it will group some of them but not all. I have set the taskbar items to "always combine", but this has not helped.
It seems possibly to be two issues: with an app that has a different taskbar icon when running than for its launcher; and for VisualStudio, when starting by double clicking a project it groups separately from when starting the IDE from the .exe.
Is there any way to force the items to combine? I quite like the Win7 taskbar, and would like it to work consistently. Has anyone else experienced this?